package com.zl.learning.http;

import org.apache.http.HttpEntity;
import org.apache.http.NameValuePair;
import org.apache.http.ParseException;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.mime.MultipartEntityBuilder;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;

import java.io.File;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

public class HttpClient4 {

    public static String doGet(String url) {
        // 创建httpGet远程连接实例
        HttpGet httpGet = new HttpGet(url);
        // 设置请求头信息，鉴权
        httpGet.setHeader("Authorization", "Bearer da3efcbf-0845-4fe3-8aba-ee040be542c0");
        // 设置配置请求参数
        RequestConfig requestConfig = RequestConfig.custom().setConnectTimeout(35000)// 连接主机服务超时时间
                .setConnectionRequestTimeout(35000)// 请求超时时间
                .setSocketTimeout(60000)// 数据读取超时时间
                .build();
        // 为httpGet实例设置配置
        httpGet.setConfig(requestConfig);
        String result = "";
        try (CloseableHttpClient httpClient = HttpClients.createDefault();/* 通过址默认配置创建一个httpClient实例*/
             CloseableHttpResponse response = httpClient.execute(httpGet); /* 执行get请求得到返回对象*/) {
            // 通过返回对象获取返回数据
            HttpEntity entity = response.getEntity();
            // 通过EntityUtils中的toString方法将结果转换为字符串
            result = EntityUtils.toString(entity);
        } catch (ClientProtocolException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return result;
    }

    public static String doPost(String url, Map<String, Object> paramMap) {
        String result = "";
        // 创建httpPost远程连接实例
        HttpPost httpPost = new HttpPost(url);
        // 配置请求参数实例
        RequestConfig requestConfig = RequestConfig.custom().setConnectTimeout(35000)// 设置连接主机服务超时时间
                .setConnectionRequestTimeout(35000)// 设置连接请求超时时间
                .setSocketTimeout(60000)// 设置读取数据连接超时时间
                .build();
        // 为httpPost实例设置配置
        httpPost.setConfig(requestConfig);
        // 设置请求头
        httpPost.addHeader("Content-Type", "application/x-www-form-urlencoded");
        // 封装post请求参数
        if (null != paramMap && paramMap.size() > 0) {
            // 为httpPost设置封装好的请求参数
            try {
                List<NameValuePair> nvps = paramMap.entrySet().stream().map(r -> new BasicNameValuePair(r.getKey(), r.getValue().toString())).collect(Collectors.toList());
                httpPost.setEntity(new UrlEncodedFormEntity(nvps, "UTF-8"));
            } catch (UnsupportedEncodingException e) {
                e.printStackTrace();
            }
        }
        try (CloseableHttpClient httpClient = HttpClients.createDefault(); // 创建httpClient实例
             CloseableHttpResponse httpResponse = httpClient.execute(httpPost);/* httpClient对象执行post请求,并返回响应参数对象*/) {
            HttpEntity entity = httpResponse.getEntity();// 从响应对象中获取响应内容
            result = EntityUtils.toString(entity);
        } catch (ClientProtocolException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return result;
    }

    /**
     * 文件上传
     */
    public void doUpload() {
        // 创建Post请求
        HttpPost httpPost = new HttpPost("http://localhost:8080/putdata");
        HttpEntity reqEntity = MultipartEntityBuilder.create().addBinaryBody("file", new File("D:\\图片\\pic\\0.jpeg")).build();
        httpPost.setEntity(reqEntity);
        try (CloseableHttpClient httpClient = HttpClientBuilder.create().build();
             CloseableHttpResponse response = httpClient.execute(httpPost);) {
            HttpEntity responseEntity = response.getEntity();
            System.out.println("响应状态为:" + response.getStatusLine());
            if (responseEntity != null) {
                System.out.println("响应内容长度为:" + responseEntity.getContentLength());
                System.out.println("响应内容为:" + EntityUtils.toString(responseEntity));
            }
        } catch (ParseException | IOException e) {
            e.printStackTrace();
        }
    }
}
